using System;

namespace Practice
{
    class MainClass
    {
        public static void Main(string[] args)
        {

            int days = int.Parse(Console.ReadLine());
            double totalFood = double.Parse(Console.ReadLine());

            double dogEaten = 0;
            double catEaten = 0;
            double biscuitsEaten = 0;

            for (int i = 1; i <= days; i++)
            {
                double dailyDogFood = double.Parse(Console.ReadLine());
                double dailyCatFood = double.Parse(Console.ReadLine());
                dogEaten += dailyDogFood;
                catEaten += dailyCatFood;

                if (i%3==0)
                {
                    biscuitsEaten += (dailyCatFood + dailyDogFood) * 0.1;
                }

            }
            double foodEaten = dogEaten + catEaten;
            double percentFoodEaten = (foodEaten / totalFood * 100);
            double percentDogEaten = dogEaten / foodEaten * 100;
            double percentCatEaten = catEaten / foodEaten * 100;

            Console.WriteLine($"Total eaten biscuits: {Math.Round(biscuitsEaten)}gr.");
            Console.WriteLine($"{(percentFoodEaten):f2}% of the food has been eaten.");
            Console.WriteLine($"{(percentDogEaten):f2}% eaten from the dog.");
            Console.WriteLine($"{(percentCatEaten):f2}% eaten from the cat.");

        }
    }
}